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Guide to Clean and Remove Car Battery Corrosion:
Step 1: Make sure your car is turned off.
Step 2: Disconnect the battery with the negative terminal first.
Step 3: Check for damage to the battery.
Step 4: Clean off the corrosion with baking soda with hot water or a cleaning agent.
Step 5: Completely dry the battery.
Step 6: Change clamps that begin with the positive terminal.
Step 7: Start your vehicle and make sure it starts normally.